Pure form of MDMA (ecstasy), usually a free powder or in capsules. Oftentimes MDA is sold as molly. Should be white in color (when it's pure) but is more often beige or yellow-brown, and sometimes brown or rarely gray.

Me and my girl chopped a 1/2 gram of molly into 4 lines last night and we each inhaled one. rolled balls for 5 hours straight. pure love and cuddles all the way.

Noun: A friend. Molly is smart, committed, a hard worker, opinionated yet liberal, compassionate, dedicated, a great listener, funny, sometimes perverse, fashionable, athletic and above all picturesque. Molly is one who you can turn to in your time of need. Molly does not pass judgment unless it is due. Molly has a great taste for music. Someone who you can speak to on the phone for hours on end and the conversation never dulls. Molly does wonders in the kitchen. Molly has a beautiful smile. Molly is the kind of girl you don’t want to let go of. You don’t want to break Molly’s heart because her trust never deserves to be broken. Many things can be said about her but her true potential is truly limitless. Molly is unique and not easily defined.

Pulchritudinous. She claims she has blue eyes but many would say hazel with gold in the middle. You can tell she has been crying when they turn gray. During summer her hair is a golden color turning darker into winter and her smile will brighten any persons day or melt any man's heart. Athletic with model body who loves the outdoors and will care and love you if you give her the chance. Never hurt Molly because if you do you will regret the decision and make one of the biggest mistakes of your love life. Molly is a gem in the world.

Boy: Im going on a date with this girl
Friend: what's her name?
Boy: Molly
Friend: oh never let her go, she's the best!

An amazing girl who is fun and bouncy to be around. Sometimes she is really hyper and crazy but is also the funniest person you could find. If you are friends with a Molly hold onto her tight. Molly's get sad and cry easily so be careful. Amazingly pretty people - brown hair with natural blonde highlights, bright blue eyes and an amazing figure. Mollys are taken for granted, people don't appreciate them enough. Molly always make sure others are happy before themselves. Mollys are pretty, musical, happy, confident and amazing friends. Love your Molly!

Refers to high-grade MDMA, a psychedelic amphetamine, of which is a structural analog of methamphetamine though not much of a functional analog. Note, that "molly" implies purity though there is absolutely no guarantee. Due to the dose required for MDMA it can easily be adulterated (cut) but much less commonly than the concoctions found in Ecstasy pills that generally contain little too no MDMA (see ecstasydata.com for the eye-opening stats).

Molly does not refer to other MDxx amphetaminese nor the 2C and nBOME analogs (all in the phenethylamine family along with MDMA and meth), and does not stand for molecular (there is a lot of misinformation in these UD entries so I included this for completeness).